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n-BUTYRONITRILE ICSC: 1465
Date of Peer Review: May 2003

Butanenitrile
Butyric acid nitrile
1-Cyanopropane
n-Propyl cyanide
CAS # 109-74-0 C4H7N / CH3CH2CH2CN
RTECS # ET8750000 Molecular mass: 69.1
UN # 2411
EC # 608-005-00-5
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking. NO contact with oxidants.
Water spray, foam, alcohol-resistant foam, dry powder, carbon dioxide.
EXPLOSION Above 17C explosive vapour/air mixtures may be formed.
Above 17C use a closed system, ventilation, and explosion-proof electrical equipment. Do NOT use compressed air for filling, discharging, or handling.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Dizziness. Laboured breathing. Nausea. Vomiting. Weakness. Confusion. Convulsions. Unconsciousness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes.
Skin MAY BE ABSORBED! Redness. (Further see Inhalation).
Protective clothing. Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes Redness. Pain. Blurred vision.
Face shield, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion (See Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give a slurry of activated charcoal in water to drink. Refer for medical attention. See Notes.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: self-contained breathing apparatus.)
Do not transport with food and feedstuffs.
EU Classification
Symbol: T
R: 10-23/24/25
S: (1/2-)-45
UN Classification
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30GFT1-II
NFPA Code: H3; F3; R; 0
Fireproof. Separated from strong oxidants, strong reducing agents, strong bases, strong acids, food and feedstuffs. Keep in a well-ventilated room.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

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n-BUTYRONITRILE ICSC: 1465
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour mixes well with air, explosive mixtures are formed easily.

CHEMICAL DANGERS:
The substance decomposes on burning, on contact with hot surfaces or flames or acids producing toxic and corrosive fumes including hydrogen cyanide and nitrogen oxides. Reacts violently with strong acids, strong bases, strong oxidants and strong reducing agents.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion, by inhalation and through the skin.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The vapour is mildly irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the cellular respiration (inhibition), resulting in convulsions, cardiac disorders and respiratory failure. Exposure at high levels may result in death. The effects may be delayed. Medical observation is indicated.

PHYSICAL PROPERTIES
Boiling point: 116-118C
Melting point: -112C
Relative density (water = 1): 0.8
Solubility in water, g/100 ml at 25C: 3
Vapour pressure, kPa at 20C: 2
Relative vapour density (air = 1): 2.4
Relative density of the vapour/air-mixture at 20C (air = 1): 1.02
Flash point: 17C
Auto-ignition temperature: 501C
Explosive limits, vol% in air: 1.6-?
Octanol/water partition coefficient as log Pow: 0.5-0.6
ENVIRONMENTAL DATA
This substance may be hazardous in the environment; special attention should be given to birds.
NOTES
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Depending on the degree of exposure, periodic medical examination is suggested.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999